﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using ExternMethod_app1_define;


namespace ExternMethod_app1
{
    class Program
    {
        static void Main(string[] args)
        {
            //string s = "Hello";
            //s.Foo();


            string s = "Hello!";
            StringExtension.Foo(s);
        }
    }
}
